air
Nitrogen makes up about 78 percent of Earth's atmosphere.
.78 or 78%
78%
The answer is.................AIR
Air is 78% nitrogen
air
Nitrogen
Nitrogen makes up about 78 percent of Earth's atmosphere.
Because air is composed of nitrogen (not 100% mind you) and when you exhale air, you also exhale nitrogen.
Nitrogen 78%, oxygen 21%
Air.
.78 or 78%
Nitrogen accounts for 78% of the atmosphere.
Nitrogen accounts for 78% of the atmosphere.
Nitrogen.
78%